Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.

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Vendors Products
Epyc 7003 Series Processors Subscribe
Epyc 8004 Series Processors Subscribe
Epyc 9004 Series Processors Subscribe
Epyc 9005 Series Processors Subscribe
Epyc Embedded 7003 Series Processors Subscribe
Epyc Embedded 8004 Series Processors Subscribe
Epyc Embedded 9004 Series Processors Subscribe
Epyc Embedded 9005 Series Processors Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 12 Feb 2026 11:30:00 +0000

Type Values Removed Values Added
First Time appeared Amd
Amd epyc 7003 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 7003 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd epyc Embedded 9005 Series Processors
Vendors & Products Amd
Amd epyc 7003 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 7003 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd epyc Embedded 9005 Series Processors

Tue, 10 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 10 Feb 2026 19:45:00 +0000

Type Values Removed Values Added
Description Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
Weaknesses CWE-1231
References
Metrics cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published:

Updated: 2026-02-10T21:12:03.165Z

Reserved: 2025-06-17T16:53:10.413Z

Link: CVE-2025-52536

cve-icon Vulnrichment

Updated: 2026-02-10T21:11:57.801Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-10T20:16:46.320

Modified: 2026-02-10T21:51:48.077

Link: CVE-2025-52536

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-12T11:19:44Z

Weaknesses